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#!/bin/sh
#
# Attach or create tmux session named the same as current directory.
path_name="$(basename "$PWD" | tr . -)"
session_name=${1-$path_name}
not_in_tmux() {
[ -z "$TMUX" ]
}
session_exists() {
tmux list-sessions | sed -E 's/:.*$//' | grep -q "^$session_name$"
}
create_detached_session() {
(TMUX='' tmux new-session -Ad -s "$session_name")
}
create_if_needed_and_attach() {
if not_in_tmux; then
tmux new-session -As "$session_name"
else
if ! session_exists; then
create_detached_session
fi
tmux switch-client -t "$session_name"
fi
}
create_if_needed_and_attach